A quick-lock connection structure for connector shielding layer

Abstract

This invention discloses a quick-lock connection structure for a connector shielding layer, relating to the field of connector technology. It includes a cable body with a shielding area inside. An inner sleeve, an outer sleeve, and a screw sleeve are sequentially assembled on the outside of the cable body. The inner sleeve passes through the inside of the shielding area, and the outer sleeve is fitted onto the outside of the shielding area, forming a splicing fit with the inner sleeve. The screw sleeve is installed outside the inner sleeve and abuts against the outer sleeve. Tightening the screw sleeve drives the outer sleeve to tighten, achieving the compression and fixation of the shielding area and the inner sleeve, as well as the clamping and positioning of the cable body. This significantly reduces operational difficulty and time costs. The integrated design of the inner sleeve and the connector shell reduces the number of additional parts and connection nodes, avoiding fitting errors caused by multi-part assembly, while simplifying the overall structural complexity. Assembly only requires sequentially fitting the inner sleeve, outer sleeve, and screw sleeve.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically to a quick-lock connection structure for a connector shielding layer. Background Technology

[0002] As the core structure for electromagnetic interference protection, the reliable electrical connection between the cable shielding layer and the connector housing directly determines the stability and anti-interference capability of signal transmission. It is widely used in various electromechanical component fields such as industrial control, automotive electronics, communication equipment, and rail transportation. With the development of modern equipment towards integration, lightweighting, and rapid assembly, the technological evolution trend of cable shielding layer connection structure towards "easy operation, reliable connection, controllable cost, and adaptability to multiple scenarios" is becoming increasingly prominent.

[0003] In the fabrication of wiring harnesses for various electromechanical equipment, the cable shielding layer must form an effective electrical connection with the connector housing to isolate external electromagnetic interference and prevent signal distortion or equipment malfunction. Whether it's high-frequency signal transmission in industrial settings, complex wiring harness layouts in automotive electronics, or high-speed data transmission in communication equipment, all place dual demands on the shielding layer connection: on the one hand, it must ensure the mechanical strength of the connection to withstand the effects of external forces such as pulling and vibration during assembly; on the other hand, it must ensure the stability of the electrical connection, preventing problems such as poor contact or shielding failure during long-term use.

[0004] Currently, in the field of cable shielding and connector connection technology, existing solutions mainly include three forms: welding, clamp-type wire clamping, and end crimping. Some solutions are designed to enhance connection reliability, using welding to fix the shielding layer to the shell. However, this process is complex, requires highly skilled operators, and carries the risk of incomplete soldering, making disassembly difficult during subsequent maintenance. Another type of solution simplifies operation by using clamp-type wire clamping or end crimping, which requires specialized crimping tools. Improper control of crimping pressure can easily lead to uneven clamping of the shielding layer, affecting shielding efficiency and potentially causing damage due to localized stress concentration. In addition, existing solutions all require additional independent connectors or adapters, resulting in a large number of parts and cumbersome assembly steps. This increases labor and material costs, leads to more potential failure points, and makes it difficult to meet the rapid assembly requirements of mass production.

[0005] The existing technology still has the following drawbacks in practical applications:

[0006] The operation process is complex: the welding process requires multiple steps such as wire stripping, tinning, positioning, welding, and cooling, and relies on professional equipment such as welding machines and skilled operators; the clamp-type wire clamp crimping and end crimping require precise positioning of the shielding layer and the wire clamp position, and then applying specific pressure with special crimping tools. The overall operation is cumbersome, time-consuming, and has low assembly efficiency.

[0007] Low connection reliability: Soldering is prone to poor soldering and false soldering due to improper temperature control. During long-term use, the solder joints may fall off due to vibration and temperature cycling. Traditional crimping methods are affected by pressure uniformity, resulting in poor electrical contact stability between the shielding layer and the connector shell. This can easily lead to problems such as increased contact resistance and decreased shielding efficiency. Furthermore, excessive crimping may damage the shielding layer fibers, causing premature failure.

[0008] Poor cost and adaptability: The equipment investment and personnel training costs for welding processes are high, and crimping tools need to be matched according to cable specifications, which increases the cost of manufacturing multi-specification wire harnesses; the redundant design of existing solutions not only increases material costs, but also makes it difficult to adapt to the assembly needs of scenarios such as confined spaces and rapid maintenance.

[0009] Insufficient maintenance convenience: The shielding layer of the welded connection needs to be removed by damaging the solder joints, and re-welding is required during secondary assembly, which can easily cause secondary damage to the cable and connector; the crimped structure needs to be replaced with wire clamps or crimping components after disassembly, and cannot be reused, resulting in high maintenance costs and low efficiency.

[0010] Therefore, in view of this, the present invention proposes a quick-lock connection structure for connector shielding layer to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0011] To address the aforementioned technical problems, this invention provides a quick-lock connection structure for a connector shielding layer, thereby resolving the technical issues raised in the background section.

[0012] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a quick-lock connection structure for a connector shielding layer, comprising a cable body, wherein a shielding area is provided inside the cable body, and an inner sleeve, an outer sleeve, and a screw sleeve are sequentially assembled on the outside of the cable body. The inner sleeve passes through the inside of the shielding area, the outer sleeve is sleeved on the outside of the shielding area and forms a splicing fit with the inner sleeve, and the screw sleeve is installed outside the inner sleeve and abuts against the outer sleeve. By tightening the screw sleeve, the outer sleeve is driven to tighten, thereby realizing the compression and fixation of the shielding area and the inner sleeve and the clamping and positioning of the cable body.

[0013] Furthermore, the outer wall of the inner sleeve is provided with external threads, and an inner sleeve through hole is provided inside the inner sleeve. The inner sleeve through hole is used for the internal wires of the cable body to pass through and connect with the connector contact. The outer diameter of the inner sleeve has a preset taper, and the inner sleeve can be integrally formed with the connector shell, thereby reducing the number of parts and connection points.

[0014] Preferably, the inner kit can be integrally connected with the connector housing, thereby reducing the number of parts and connection points.

[0015] Furthermore, the outer casing has a through hole inside, one end of which has a tapered hole that matches the taper of the inner casing's tail. The other end of the through hole matches the cable body, and the tail of the outer casing has a chamfered design.

[0016] Furthermore, an anti-slip groove is provided at the position of the outer sleeve through hole corresponding to the outer wall of the cable body, and the anti-slip groove is evenly distributed along the axial direction of the outer sleeve through hole.

[0017] Preferably, the anti-slip groove can increase the contact friction between the outer sleeve and the cable body, effectively preventing the cable body from axially shifting during use.

[0018] Furthermore, the outer kit has a segmented groove at its tail end. The segmented groove is an axially through groove with at least two segments. Each segment has the same structural dimensions, and the free end face of the segment is fully fitted with the screw kit.

[0019] Furthermore, the inner wall of the screw assembly is provided with an internal thread, which is adapted to the external thread of the inner assembly. A through hole is provided inside the screw assembly, and one end of the through hole is provided with a tapered hole, which is adapted to the chamfer design at the tail of the outer assembly. The diameter of the through hole is adapted to the outer diameter of the cable body.

[0020] Preferably, the tightening drive is achieved through the cooperation of the internal thread and the inner fitting. The tapered hole can convert the axial force of the screw fitting into the radial tightening force of the outer fitting, ensuring the clamping effect of the shielding area.

[0021] Furthermore, the screw assembly has an auxiliary module inside, which includes a circular pad. The sidewall of the circular pad is symmetrically fixedly connected to a shaft. The screw assembly has a slot at the position corresponding to the shaft inside, and the screw assembly and the shaft are slidably connected through the slot.

[0022] Furthermore, the outer wall of the insertion shaft is provided with staggered beveled openings, and the surface of each beveled opening is provided with a limiting groove. The inner wall of each limiting groove is slidably connected with a supporting protrusion, and the outer surface of the supporting protrusion is a smooth arc shape.

[0023] Furthermore, in the initial assembly state, each of the support protrusions is located at the bottom of the limiting groove. When the insert shaft slides axially along the preset slot on the screw assembly, the support protrusions gradually move upward along the guiding direction of the limiting groove until the insert shaft slides to the end limiting position of the slot and stops. At this point, the outer surface of the support protrusions and the inner wall of the screw assembly form a fully fitted and tight contact.

[0024] Compared with the prior art, the beneficial effects of the present invention are: (1) The device achieves efficient and convenient assembly process through optimized structural design, greatly reducing the difficulty of operation and time cost. The integrated design of the inner kit and the connector shell reduces the number of extra parts and connection nodes, avoids the matching error caused by multi-part assembly, and simplifies the complexity of the overall structure. During assembly, only the inner kit, outer kit and screw kit need to be put on in sequence, and the fixing can be completed by tightening the screw. No professional tools and complex skills are required. Whether it is on-site construction or later maintenance, the operation can be completed quickly, which effectively improves the assembly efficiency. It is especially suitable for scenarios that require batch installation or frequent adjustment, and solves the problem of cumbersome steps and time-consuming labor in traditional connection methods.

[0025] Most importantly, the device significantly improves connection stability and reliability, effectively resisting the effects of external forces such as vibration and tension. The combination of conical surface fit and segmented groove structure design allows the axial thrust of the screw assembly to be evenly converted into the radial tightening force of the outer assembly, ensuring the shielded area is firmly clamped between the inner and outer assemblies, forming a stable mechanical fixation and electrical connection. The anti-slip structure on the inner wall of the outer assembly further enhances the fit with the cable body, preventing axial movement or circumferential rotation during use and ensuring consistently stable shielding performance. This uniform force distribution design not only reduces contact resistance and improves the conduction and isolation capabilities of electromagnetic interference, but also protects the cable from localized stress damage, extends the service life of the overall connection structure, and is suitable for various complex working conditions.

[0026] This device boasts excellent versatility and practicality, with a wide range of adaptability and lower economic costs. Its integrated structure and modular design enable compatibility with cables of different specifications, eliminating the need for custom-made components for specific cables, thus reducing inventory management and production costs. Furthermore, the overall structure requires no complex processing techniques, keeping production difficulty and manufacturing costs under control. It is also disassembled and reusable, reducing resource waste and subsequent maintenance costs. Its stable shielding performance and connection effectiveness meet the needs of various scenarios such as industrial equipment, rail transportation, and communication systems, and is particularly suitable for environments with high requirements for electromagnetic compatibility and connection reliability, providing users with a solution that combines performance and economy.

[0027] (2) As an optional reinforcement component for high vibration scenarios, the auxiliary module greatly improves the device's scenario adaptability and usage flexibility. The installation process is convenient and efficient, and it is fully compatible with the core connection structure of Embodiment 1. It does not require additional tools and can be quickly pre-installed by precise matching of the insert shaft and slot. During the installation process, the initial non-contact state of the support protrusion avoids scratch damage to the inner wall of the screw assembly, effectively protecting the integrity of the original structure. The entire installation process does not change the core assembly logic. It can be deployed directly after the new structure is assembled, or it can be used for later upgrades of the connection structure that has already been put into use. There is no need to disassemble the original components, which greatly reduces the difficulty of operation and maintenance costs, allowing users with different needs to flexibly enjoy the high vibration protection function, and expanding the applicable scenarios and service life of the device.

[0028] The auxiliary module provides dual protection for connection stability in high-vibration environments. Through the cooperation of the sliding shaft and the inclined guide, the support protrusion forms a uniform radial support force, which not only effectively limits the axial movement and circumferential rotation of the screw assembly, thus avoiding the risk of loosening caused by long-term thread vibration, but also significantly enhances the structural rigidity of the screw assembly and reduces its deformation in high-frequency vibration. This strengthening effect can be directly transferred to the outer assembly, ensuring that it remains in a tightened state, thereby stabilizing the reliable electrical connection between the shielded area and the inner assembly, and the secure clamping of the cable body. This allows the connection structure to maintain excellent shielding performance and connection reliability in high-frequency vibration scenarios such as industrial equipment and rail transportation, greatly enhancing the core competitiveness and practical value of the device. Attached Figure Description

[0029] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0030] Figure 2 This is a cross-sectional planar structural diagram of the present invention.

[0031] Figure 3 This is an exploded view of the components of the present invention.

[0032] Figure 4 This is a cross-sectional planar structural diagram of the inner component of the present invention.

[0033] Figure 5 This is a cross-sectional planar structural diagram of the outer casing of the present invention.

[0034] Figure 6 This is a schematic diagram of the three-dimensional structure of the outer casing of the present invention.

[0035] Figure 7 This is a side view of the outer casing of the present invention.

[0036] Figure 8 This is a cross-sectional plan view of the screw assembly in Embodiment 1 of the present invention.

[0037] Figure 9 This is a three-dimensional structural diagram of the auxiliary module in Embodiment 2 of the present invention.

[0038] Figure 10 This is a schematic diagram of the three-dimensional structure of the supporting protrusion in Embodiment 2 of the present invention.

[0039] Figure 11 This is a cross-sectional plan view of the positional relationship between the screw assembly and the auxiliary module in Embodiment 2 of the present invention.

[0040] The following are the labels in the diagram: 1. Cable body; 11. Shielding area; 2. Inner sleeve; 21. External thread; 22. Inner sleeve through hole; 3. Outer sleeve; 31. Outer sleeve through hole; 32. Split groove; 4. Screw sleeve; 41. Internal thread; 42. Screw sleeve through hole; 5. Auxiliary module; 51. Circular pad; 52. Insert shaft; 53. Limiting groove; 54. Support protrusion. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] Please refer to Figure 1 - Figure 3 As shown, a quick-lock connection structure for a connector shielding layer includes a cable body 1. The cable body 1 has a shielding area 11 inside. An inner sleeve 2, an outer sleeve 3, and a screw sleeve 4 are sequentially assembled on the outside of the cable body 1. The inner sleeve 2 passes through the inner side of the shielding area 11. The outer sleeve 3 is sleeved on the outer side of the shielding area 11 and forms a splicing fit with the inner sleeve 2. The screw sleeve 4 is installed on the outside of the inner sleeve 2 and abuts against the outer sleeve 3. By tightening the screw sleeve 4, the outer sleeve 3 is driven to tighten, thereby realizing the compression and fixation of the shielding area 11 and the inner sleeve 2 and the clamping and positioning of the cable body 1.

[0044] Please refer to Figure 2 - Figure 8As shown, the outer wall of the inner sleeve 2 is provided with an external thread 21, and an inner sleeve through hole 22 is provided inside the inner sleeve 2. The inner sleeve through hole 22 is used for the internal wires of the cable body 1 to pass through and connect with the connector contacts. The outer diameter of the inner sleeve 2 has a preset taper at the tail. The outer sleeve 3 has an outer sleeve through hole 31 provided inside. One end of the outer sleeve through hole 31 is provided with a tapered hole, which is adapted to the taper of the tail of the inner sleeve 2. The other end of the outer sleeve through hole 31 is adapted to the cable body 1. The tail of the outer sleeve 3 is designed with a chamfer. The outer sleeve through hole 31 is provided with an anti-slip groove at the position corresponding to the outer wall of the cable body 1. The anti-slip grooves are evenly distributed along the axial direction of the outer sleeve through hole 31. The tail of the outer sleeve 3 is provided with a split groove 32, which is an axial through groove. The number of splits is at least two, and the structural dimensions of each split are consistent. The free end face of each split is fully fitted with the screw sleeve 4. The inner wall of the screw sleeve 4 is provided with an internal thread 41, which is adapted to the external thread 21 of the inner sleeve 2. The screw sleeve 4 is provided with a through hole 42, and one end of the through hole 42 is provided with a tapered hole. The tapered hole is adapted to the chamfer design of the tail of the outer sleeve 3. The diameter of the through hole 42 is adapted to the outer diameter of the cable body 1.

[0045] It should be noted that the inner kit 2 can be integrally connected with the connector housing, thereby reducing the number of parts and connection points. The anti-slip groove can increase the contact friction between the outer kit 3 and the cable body 1, effectively preventing the cable body 1 from axially shifting during use.

[0046] Specifically, the working process of this device is as follows: First, the outer insulation of the cable body 1 is stripped to expose the inner shielding area 11, which is then appropriately broken up. Then, the inner sleeve 2 is inserted from the inside of the shielding area 11, so that the tapered section at the tail of the inner sleeve 2 fully corresponds to the broken shielding area 11. Next, the outer sleeve 3 is fitted onto the outside of the shielding area 11, ensuring that the tapered hole inside the outer sleeve 3 accurately fits the tapered section at the tail of the inner sleeve 2. Finally, the screw sleeve 4 is initially screwed into the outer thread 21 of the outer wall of the inner sleeve 2 through the internal thread 41 of the inner wall, so that the tapered hole inside the screw sleeve 4 contacts the chamfer at the tail of the outer sleeve 3, completing the initial assembly of the entire device. In this stage, the accurate positioning of each component lays the foundation for subsequent force transmission and tightening actions, ensuring that the mating surfaces fit properly and avoiding uneven force distribution that could affect the fixing effect.

[0047] Subsequently, the screw assembly 4 is continuously rotated in the same direction. Since the screw assembly 4 and the inner assembly 2 are connected by threads, the inclined plane principle of the threads converts the rotational motion into axial thrust, causing the screw assembly 4 to move smoothly along the axis of the inner assembly 2 towards the outer assembly 3. As the screw assembly 4 continues to advance, its internal tapered hole and the chamfer at the tail of the outer assembly 3 form a tight squeeze, generating continuous and uniform axial pressure, realizing the effective transmission of force. This process provides stable power for the tightening of the outer assembly 3. The threaded connection can also ensure the controllability of the driving force and avoid damage to the components due to excessive force.

[0048] Under the axial pressure applied by the outer sleeve 3, the outer sleeve 3, due to the axially penetrating segmented groove 32 at its tail, has the ability to deform radially contract and begins to shrink inward radially. At the same time, the tapered hole inside the outer sleeve 3 and the tapered end of the inner sleeve 2 always remain in contact. The tapered surface fit further converts the axial pressure into radial tightening force, causing the inner wall of the outer sleeve 3 to gradually move closer to the shielding area 11 and the cable body 1. The uniform distribution of the segmented groove 32 ensures that each segment contracts synchronously, avoiding local contraction that leads to force imbalance. This process achieves the tightening action through structural deformation, providing key protection for the fixation of the shielding area 11 and the clamping of the cable.

[0049] As the outer kit 3 continues to radially contract, its inner wall fully adheres to the dispersed shielding area 11 and applies continuous clamping force, tightly clamping the shielding area 11 between the inner kit 2 and the outer kit 3, forming a reliable mechanical fixation. At the same time, if the inner kit 2 adopts a design that is integrally connected with the connector housing, the clamped shielding area 11 can form a stable electrical connection with the connector housing through the inner kit 2, realizing the conduction and isolation of electromagnetic interference. This process not only completes the mechanical fixation of the shielding area 11, but also achieves conductive continuity, reduces contact resistance, and improves electromagnetic shielding efficiency. The integral molding design can also reduce the number of parts and connection points, reducing the risk of failure.

[0050] During the tightening process of the outer sleeve 3, the anti-slip groove inside, corresponding to the outer wall of the cable body 1, comes into close contact with the outer wall of the cable body 1. The concave and convex structure of the anti-slip groove increases the frictional resistance between the outer sleeve 3 and the cable body 1. At the same time, the diameter of the screw sleeve through hole 42 inside the screw sleeve 4 is adapted to the outer diameter of the cable body 1, forming a radial limit on the cable body 1. Under the dual action, the cable body 1 is firmly held, effectively restricting its axial movement and circumferential rotation. This process ensures that the cable body 1 will not be displaced due to external forces such as vibration and pulling during use, ensuring the stability of the connection and avoiding the impact of cable body 1 displacement on shielding effect and signal transmission quality.

[0051] Example 2

[0052] Based on Example 1, please refer to Figure 9 - Figure 11As shown, the screw assembly 4 has an auxiliary module 5 inside. The auxiliary module 5 includes a circular pad 51. The side wall of the circular pad 51 is symmetrically fixedly connected to the insertion shaft 52. The screw assembly 4 has a slot at the position corresponding to the insertion shaft 52. The screw assembly 4 and the insertion shaft 52 are slidably connected through the slot. The outer wall of the insertion shaft 52 has staggered beveled openings. The surface of each beveled opening has a limiting groove 53. The inner wall of each limiting groove 53 is slidably connected to a support protrusion 54, and the outer surface of the support protrusion 54 is a smooth arc shape.

[0053] It should be noted that in the initial assembly state, each support protrusion 54 is located at the bottom of the limiting groove 53. When the insertion shaft 52 slides axially along the preset slot on the screw assembly 4, the support protrusion 54 moves upward gradually along the guiding direction of the limiting groove 53 until the insertion shaft 52 slides to the end limiting position of the slot and stops. At this point, the outer surface of the support protrusion 54 and the inner wall of the screw assembly 4 form a fully fitted and tight contact.

[0054] Specifically, auxiliary module 5 is an optional reinforcement process added for high-vibration environments after the core connection structure of embodiment one—inner component 2, outer component 3, and screw component 4—is assembled and tightened. Its working principle and process are as follows:

[0055] The initial pre-installation process of auxiliary module 5 involves tightening the screw assembly 4 into place and fixing the shielding area 11 and the cable body 1 of the outer assembly 3. Then, the insertion shaft 52 of auxiliary module 5 is aligned with the preset slot inside the screw assembly 4, and the insertion shaft 52 is inserted into the initial position along the axial direction of the slot. At this time, the circular pad 51 is located at the end of the screw assembly 4, and each support protrusion 54 is initially located at the bottom of the limiting slide groove 53. Its outer surface does not contact the inner wall of the screw assembly 4. The initial positioning is achieved only through the cooperation of the insertion shaft 52 and the slot. This pre-installation method does not require additional tools and can quickly complete the module deployment. Moreover, the non-contact state of the support protrusions 54 avoids scratching the inner wall of the screw assembly 4 during the installation process, ensuring the surface integrity of the original structure.

[0056] The operator manually pushes the circular pad 51 inwards towards the screw assembly 4. The circular pad 51 drives the symmetrically connected insert shaft 52 to slide axially along the slot. Since the outer wall of the insert shaft 52 has a beveled opening, when the limiting slide groove 53 slides with the insert shaft 52, its beveled structure will generate a continuous guiding thrust on the support protrusion 54, causing the support protrusion 54 to move upwards gradually along the trajectory of the limiting slide groove 53. At the same time, the smooth arc design of the outer surface of the support protrusion 54 can reduce the sliding resistance with the inner wall of the screw assembly 4, ensuring smooth and unobstructed movement. This process, through the combination of manual pushing and beveled guidance, achieves accurate displacement of the support protrusion 54, providing a stable structural foundation for subsequent vibration protection.

[0057] When the insert shaft 52 slides to the end limit position of the slot, the support protrusion 54 has moved to the maximum stroke of the limit slide groove 53, and its outer surface forms a tight contact with the inner wall of the screw assembly 4. At this time, the support protrusion 54 will apply a relatively uniform radial support force to the inner wall of the screw assembly 4. For high vibration environments, this radial support force can limit the circumferential rotation and axial movement of the screw assembly 4, and avoid the risk of the screw assembly 4 becoming loose due to long-term vibration from a structural perspective. At the same time, the tight contact between the support protrusion 54 and the inner wall of the screw assembly 4 can also enhance the structural rigidity of the screw assembly 4, reduce its deformation in vibration, and thus maintain the continuous tightening state of the outer assembly 3, ensuring the reliable electrical connection between the shielding area 11 and the inner assembly 2, as well as the stable clamping of the cable body 1, effectively adapting to the usage requirements of high-frequency vibration scenarios such as industrial equipment and rail transportation.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connector shielding layer quick-lock connection structure, comprising a cable main body (1), the cable main body (1) is internally provided with a shielding area (11), characterized in that: The cable body (1) is sequentially equipped with an inner sleeve (2), an outer sleeve (3) and a screw sleeve (4). The inner sleeve (2) is inserted inside the shielding area (11). The outer sleeve (3) is fitted on the outside of the shielding area (11) and forms a splicing fit with the inner sleeve (2). The screw sleeve (4) is installed on the outside of the inner sleeve (2) and abuts against the outer sleeve (3). By tightening the screw sleeve (4), the outer sleeve (3) is driven to tighten, thereby realizing the pressing and fixing of the shielding area (11) and the inner sleeve (2) and the clamping and positioning of the cable body (1). The screw assembly (4) is provided with an auxiliary module (5) inside. The auxiliary module (5) includes a circular pad (51). The side wall of the circular pad (51) is symmetrically fixedly connected with a shaft (52). The screw assembly (4) is provided with a slot at the position corresponding to the shaft (52). The screw assembly (4) and the shaft (52) are slidably connected through the slot. The outer wall of the insert shaft (52) is provided with staggered oblique openings, and the surface of each oblique opening is provided with a limiting groove (53). The inner wall of each limiting groove (53) is slidably connected with a supporting protrusion (54), and the outer surface of the supporting protrusion (54) is a smooth arc shape. In the initial assembly state, each of the support protrusions (54) is located at the bottom of the limiting groove (53). When the insert shaft (52) slides axially along the preset slot on the screw assembly (4), the support protrusions (54) gradually move upward along the guiding direction of the limiting groove (53) until the insert shaft (52) slides to the end limiting position of the slot and stops. At this point, the outer surface of the support protrusions (54) and the inner wall of the screw assembly (4) form a fully fitted and tight contact state.

2. The quick-lock connection structure for a connector shielding layer according to claim 1, characterized in that: The outer wall of the inner sleeve (2) is provided with an external thread (21), and the inner sleeve (2) is provided with an inner sleeve through hole (22). The inner sleeve through hole (22) is used for the internal wires of the cable body (1) to pass through and connect with the connector contact. The outer diameter of the inner sleeve (2) has a preset taper.

3. The quick locking structure of a connector shielding layer according to claim 1, characterized in that: The outer sleeve (3) has a through hole (31) inside. One end of the through hole (31) is provided with a tapered hole that matches the tapered end of the inner sleeve (2). The other end of the through hole (31) matches the cable body (1). The tail of the outer sleeve (3) is designed with a chamfer.

4. The quick locking structure of a connector shielding layer according to claim 3, characterized in that: The outer casing through hole (31) is provided with an anti-slip groove at the position corresponding to the outer wall of the cable body (1), and the anti-slip groove is evenly distributed along the axial direction of the outer casing through hole (31).

5. The quick locking structure of a connector shielding layer according to claim 3, characterized in that: The outer kit (3) has a split groove (32) at its tail. The split groove (32) is an axial through groove, and the number of splits is at least two. The structural dimensions of each split are consistent, and the free end face of the split is fully fitted with the screw kit (4).

6. The quick locking structure of a connector shielding layer according to claim 1, characterized in that: The inner wall of the screw assembly (4) is provided with an internal thread (41), which is adapted to the external thread (21) of the inner assembly (2). The screw assembly (4) is provided with a through hole (42) inside. One end of the through hole (42) is provided with a tapered hole, which is adapted to the chamfer design at the tail of the outer assembly (3). The diameter of the through hole (42) is adapted to the outer diameter of the cable body (1).

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